pub fn gen_report(values: HashMap<String, i32>) -> Result<String>
Expand description
Generate a Prometheus compatible report. Output should follow the instrumentation guidelines.
In short form, the file should be a plain text output, with each metric on it’s own line using the following format:
# HELP metric_name Optional description of this metric
# TYPE metric_name {required type (gauge|count|histogram|summary)}
metric_name{label="label1"} value
metric_name{label="label2"} value
An example which would return counts of messages in given states at the current time would be:
# HELP autopush_reliability Counts for messages in given states
# TYPE metric_name gauge
autopush_reliability{state="recv"} 123
autopush_reliability{state="stor"} 123
# EOF
Note that time is not required. A timestamp has been added to the output, but is ignored by Prometheus, and is only provided to ensure that there is no intermediate caching occurring.